• Title/Summary/Keyword: Life-course

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Analysis of Genetic Diversity in Thirteen Turfgrass Cultivars Cultivated at Golf Courses Using RAPD Markers (RAPD마커를 이용한 국내골프장의 잔디 13 품종의 유전적 다양성 분석)

  • Kim, Min-Jeong;Kim, Tae-Soo;Shim, Chang-Ki;Kim, Yong-Ki;Jee, Hyeong-Jin
    • Weed & Turfgrass Science
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    • v.1 no.4
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    • pp.57-63
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    • 2012
  • This study was carried our to examine the genetic relationship of 13 commercial turfgrass cultivars using Random Amplified Polymorphic DNA to provide genetic informations more efficient golf course management. Analysis of 56 random hexamer primers generated 13 to 54 polymorphic bands among the 13 cultivars with an average of 30.7 bands per primer. The results of cluster analysis based on RAPDs revealed that three major variety groups: Group I - 'Shadow II', 'Aurora Gold', 'Little Bighorn Blue', 'PennA-1', and 'PennA-4'; Group II - 'Midnight II', 'Prosperity', 'Moon light SLT', 'Bright star SLT', and 'Silver dollar'; and Group III - 'Olympic Gold', 'Silver Star', and 'Tar Heel II'. The genetic similarity coefficients among 13 turfgrass cultivars ranged from 0.039 to 1.0 with highest coefficient in Group III. Studies on morphological characters and the effective molecular markers such as sequence characterized amplified regions are further needed to identify relationships and genetic diversities within species and among species.

The Effect of the Circuit Exercise and Conventional Exercise on Walking Ability in Chronic Stroke (순환운동과 전통적 운동이 만성 뇌졸중환자의 보행능력에 미치는 효과)

  • Song, Woo-Seok;Park, Min-Chull;Shim, Je-Myung
    • Journal of the Korean Society of Physical Medicine
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    • v.5 no.2
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    • pp.193-201
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    • 2010
  • Purpose : This study achieved to search the effect of the circuit exercise and conventional exercise on walking ability(walking speed, endurance, dynamic balance, speed, endurance and pedestrian crossing) in chronic stroke. Methods : Since is diagnosed by stroke, to 30 chronic stroke patients who more than 1 year past the 15 circuit exercise group, the 15 conventional exercise group random the circuit exercise group applied circuit exercise 3th 8 weeks each week after neurological treatment because assigning and the conventional exercise group executed round trip walk exercise in parallel bar 3th 8 weeks each week after neurological treatment. The data of 25 patients who complete experimental course were statistically analysed. Results : The results of this dissertation were as following : 1) There were significantly increased after experimental of 10 meter walk test, 6 minutes walk test and Timed "Up and Go" test in circuit exercise group (p<.001). 2) There were significantly increased after experimental of 2, 4 and 6 lane road crossing mobility in Walking circuit exercise group(p<.01). 3) There were significantly differences after experimental of 10 meter walk test, 6 minutes walk test and Timed "Up and Go" test change quantity between circuit exercise group and conventional exercise group(p<.05). 4) There were correlations were found between the TUG test and 2, 4 and 6 lane road (2 lane road; r=.463, p<.01., 4 lane road; r=515, p<.01., 6lane road; r=.710, p<.01), and there were correlations were found between the 10 meter walk test and 6 minutes walk test(r=.595, p<.01), TUG test(r=.662, p<.01) and 6 lane road(r=.527, p<.01). Conclusion : Even if improvement of walk function through training consists in room, transfer of actuality pedestrian crossing is no change outside the room. Because it is much variable of the weather, seasonal factor, temperature, pedestrian number, state of underneath etc. outside the room. Then, in room after direction promotion of walk function to be promotion of walk function in actuality life and need development of connectable training method consider.

Detection of the Factors Related to spermatization in Sclerotinia trifoliorum -I. Course of Fertilization (Sclerotinia trifoliorum의 Spermatization에 관여하는 요인(要因)의 검색(檢索) -I. 균(菌)의 수정과정(受精過程))

  • Uhm, Jae Youl;Kim, Young Tae
    • Current Research on Agriculture and Life Sciences
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    • v.5
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    • pp.127-133
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    • 1987
  • The process of fertilization and changes in anatomical structure of sclerotia during the apothecial formation in Sclerotinia trifoliorum, the causal fungus of sclerotial rot of forage legumes, were investigated. The time of fertilization could be estimated with fair accuracy by the sequencial spermatization of the sclerotia which kept at 15C in saturated moisture. In the case of one strain used in this experiment, fertilization between the sclerotia and spermatia were estimated to take place at around 18days after the sclerotia were placed under the conditions for apothecial induction (15C, saturated moisture). The fertilizable state was maintained for about 45 days and the spermatization thereafter did not induce the apothecial formation. When the sclerotia reached fertilizable state, a number of interwoven hyphal nests were developed within the medulla of sclerotia, regardless of the sexuality of the cultures. Comparing the process of multiplication and growth of the hyphal nests in homothallic and heterothallic culture, they were identified as ascogonium. These ascogonia were persisted for about 45 days. This observation was well coincided with the duration of fertilizable state elucidated by the sequencial spermatization experiment.

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The Stability of N-(butoxymethyl)-2-chloro-2', 6'-diethylacetanilide(Butachlor) formulation (N-(butoxymethyl)-2-chloro-2',6'-diethylacetanilide(Butachlor) 제제(製劑)의 안정성(安定性))

  • Hong, Jong Uck;Lee, Jung Hoon;Kim, Jang Eok
    • Current Research on Agriculture and Life Sciences
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    • v.2
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    • pp.56-62
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    • 1984
  • This experiment was carried out to investigate the effects of distilled water, pH, uv-irradiation, carrier, emulsifier and organic solvent on the stability of butachlor formulations in the course of storage. The uv-irradiation increased the decomposition rate of butachlor formulations in the order of emulsifiable concentrate, sand coated granular and zeolite adsorbed granular. Decomposition of butachlor emulsion was not affected by water and pH. Decomposition of butachlor emulsifiable concentrate which were prepared with various organic solvents at $50^{\circ}C$ was higher in the polar organic solvents than in the non-polar organic solvent. Decomposition of butachlor-emulsifiable concentrate emulsified in Tween-60 was higher than in Hy-620C or Newkalgen-MC.

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Self-Esteem and Stress-Coping Strategies of the College Students in the Department of Public Health (보건계열 대학생의 자아존중감과 스트레스 대처방안)

  • Yu, Eun-Yeong
    • The Journal of the Korea Contents Association
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    • v.9 no.6
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    • pp.225-236
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    • 2009
  • This study attempted to implement fundamental data to understand the relationship between self esteem and stress-coping strategies of current students in health related colleges for the development of a program related to school life and guidance. This study involved 244 willfully participating college students from six health related colleges in the Honam area. Data from self administered questionnaires regarding self esteem and stress-coping strategies were collected from November 1 to December 21, 2008. The results of the study showed self esteem was high when general characteristics of religion and a very harmonious relationship with classmates were present. Higher usage of active stress-coping strategies occurred as the year in college and mother's education increased. Active implementation of passive stress-coping strategies were used when religion and residing in rural areas were present. Self esteem was higher as active stress coping strategies (i.e. problem focus and social support) improved. As passive stress-coping strategies (i.e. emotional relief and desire management) improved so did self esteem. By and large as stress-coping strategies increased for college students so did self esteem. As a result, as we search for stress-coping strategies pertaining to studies, practices, and future employment of college students, preparation of a regular course of study that includes curriculum, which increases self esteem should be made. Also consideration should be given to programs that promote relations between students and students and their advising professors.

The 'Authentic' Pleasures of Engineering Students (공대생의 '진정'한 즐거움: 과학기술특성화 대학 학생들의 서사적 정체성과 가치 체계에 관한 연구)

  • Kim, Hyomin;Cho, Heesoo
    • Journal of Science and Technology Studies
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    • v.17 no.2
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    • pp.113-171
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    • 2017
  • Science and engineering college students, so-called engineering students, account for nearly half of Korean university students. Existing research on younger generations poses a question of young generation after the financial crisis as a 'genuine' survivalist who carries out 'passionate labor' to pursue 'ordinary life' and 'banal stability'. They are diagnosed as failing to "locate the course of their lives in relation to a larger being that transcends self". But is there a value that can replace the survival value in front of us today, which is possible to be practiced and narrated by the young generation of Korea, especially the engineering students? What value (if any) is not captured by survival value, and what mechanisms and processes can and can easily be used by engineering students? Our research uses interviews conducted at one research-centered science and engineering university in a local metropolitan city, Korea. In conclusion, we emphasize that a transformed version of developmental nationalism, in which individual scientists/engineers pursue their 'authentic' passion and unintentionally contribute to the development of the nation through byproducts of their research, exerts strong influence upon the formation of young engineering students' narratives linking their selfhood and the good.

Subjectivity of Female College Students Menstruation Experience (여대생의 월경경험에 관한 주관성)

  • Hwang, Yun-Young;Park, Eun-Hee;Back, Sun-Sook;Kim, Myung-Hee;Kim, Hee-Young;Lee, Won-Yu;Ryoo, Eon-Na;Park, Kyung-Sook
    • Women's Health Nursing
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    • v.9 no.1
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    • pp.39-49
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    • 2003
  • This study is an attempt to provide fundamental information on how to manage menstruation discomforts by surveying the subjective viewpoint s on menstruation from female college students. Utilizing 40 Q-samples in Seoul between May 1 and June 30, 2001, data has been collected from 30 randomized P-samples. Data analysis involves the PC QUANL Program, Q-factor analysis, and Principal Component Analysis. The result of the data analysis gives four types of categorizat ion as follows : The first is the "inconvenience-recognizing" type that includes 10 subjects out of 30. During menstruation, this type of subject usually complained of physical discomfort such as pain in the lower back and abdomen. Even though they considered menstruation to be troublesome, they did nothing about the in convenience. The second is the "positively-accepting" type that includes 7 subjects out of 30. This type of subject takes menstruation as natural and even a privilege for a woman. They think they are blessed to conceive a new life through their biological cycle. Therefore unlike other types, they rarely complained of any physical and psychological discomfort caused by menstruation. The third is the "destined course" type that includes 6 subjects out of 30. This type of subject endures the discomfort caused by menstruation with out any medication or medical treatment. They appeared to take menstruation a s fate without having any specially negative or positive attitude. The fourth is the "negatively-accepting" type that includes 7 out 30. This type of subject takes menstruation as negative, even if it is unavoidable for a woman. Menstruation, very negatively taken, felt uncomfortable and caused them to have pain in the lower back and abdomen and an oversensitive nervous system. The four types of attitude towards menstruation show their own characteristic features in dealing with menstruation. Understanding these features in detail will enhance nursing implementation which is related to menstruation. This study is intended to provide fundamental information with which nurses can deal with menstruation problems by investigating subjective viewpoints about menstruation. This study is a stepping stone on which further study on this subject can build to develop an effective and efficient way to deal with menstruation discomforts.

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A Study on the Correspondence of the Types of Despair with the Stages of Life in Kierkegaard's Thought (키에르케고르의 절망의 형태와 삶의 단계의 상응에 관한 연구)

  • Im, Gyu-Jeong
    • Journal of Korean Philosophical Society
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    • v.105
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    • pp.351-372
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    • 2008
  • This Thesis is the study on the corresponding relations between Kierkegaard's existential stages and the forms of despair. the subjects of Kierkegaard's philosophical psychology are despair and anxiety. He studies the forms of despair in Sickness Unto Death, and anxiety in The Concept of Anxiety. He seeks to elucidate the human existence by way of the psychological inquiry on despair and anxiety. I will primarily study Kierkegaard's concept of despair in order to make out his understanding of human existence and, then, inquire into his concept of anxiety supplementarily. Until now, many studies on Kierkegaard's concept of despair have been carried out mainly focusing on his Sickness Unto Death. Of course, those studies focusing on his Sickness Unto Death are meaningful in a sense, but have a limit of abstract understanding, since Kierkegaard argues many forms of despair abstractly through the ontological form of the self which is constituted by the opposing constituents such as necessity and possibility. In order to understand his abstract explanation about despair, I think, we have to compare various modes of existence and the forms of despair which are portrayed in Either/Or and Fear and Trembling. Therefore, I will enquire into his seemingly unrelated works synthetically and elucidate his understanding on the relation of the forms of despair and the stages of existence.

Convergence Factors Affecting Suicide Risk of University Freshmen (대학신입생의 자살위험성에 영향을 미치는 융합적 요인)

  • Gang, Moon-Hee;Kim, Seon-Hee;Oh, Eun-jin
    • Journal of the Korea Convergence Society
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    • v.10 no.11
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    • pp.471-479
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    • 2019
  • The purpose of this study was to investigate the correlations between ADHD, depression, anxiety, suicide risk and suicide risk of university freshmen, and to investigate factors affecting suicide risk of university freshmen. As a result, the correlation between suicide risk and ADHD, depression, and anxiety were statistically significant. The correlation between suicide risk and ADHD (r=-.411) was moderately negative, while depression (r=-.594) and anxiety (r=-.563) were high negative correlations. According to the logistic regression analysis, the significant factors affecting suicide risk of college freshmen were ADHD, depression, and anxiety. In the abnormal group of variables, ADHD (OR=3.17; 95% CI 1.36-7.38), depression (OR=10.80; 95% CI 4.32-27.02) and anxiety (OR=3.39; 95% CI 1.55-7.41) were identified as influencing factors. As such, suicide risk groups of college freshmen are highly associated with ADHD, depression, and anxiety. Therefore, personal counseling and regular psychological tests of college freshmen will be provided to the high-risk suicide program to help students' psychological stability and adjustment to school life.

Evaluation of the Femoral Stem Implant in Canine Total Hip Arthroplasty: A Cadaver Study

  • Cho, Hyoung Sun;Kwon, Yonghwan;Kim, Young-Ung;Kang, Jin-Su;Lee, Kichang;Kim, Namsoo;Kim, Min Su
    • Journal of Veterinary Clinics
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    • v.36 no.1
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    • pp.53-61
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    • 2019
  • Total hip arthroplasty (THA) is a successful surgical treatment for both patients with chronical lameness and dogs who are nonresponsive to medical treatments, providing excellent joint function for returning dogs to the normal gait in 80% to 98% of hip dysplasia (HD) patients. The THA surgical implant system manufactured by BioMedtrix and Kyon are today widely accepted. When comparing the BioMedtrix biological fixation (BFX) system to the BioMedtrix cemented fixation (CFX) system, the many advantages of BFX, which include longer potential implant life, decreased risk of postoperative or later infection, and better implant stability, become evident. However, BFX implies a greater risk of femoral fracture during reaming and requires a more precise surgical technique to achieve good implant fit, given the press-fit nature of cementless THA. The purposes of this study are to both describe the mistakes and complications during stem implantation for beginner surgeons with both the BFX and the CFX systems and to document the initial result of 12 implantations in canine cadavers. Given the detailed evaluations of 3 specialists, who are Diplomate American College of Veterinary Surgeons (DACVS), only 3 of 11 stems were appropriately sized. Specifically, 6 stems were anteverted rather than being retroverted; further, although 7 stems were coaxial with the femoral long axis in the frontal plane, the other stems were in the varus at the frontal plane, with the proximal medial stem adjacent to the medial femoral cortex. Moderate angulation from the cranial to the caudal directions was found in 4 cases in the sagittal plane. Additionally, 1 case of femoral fissure and 1 case of perforated femoral cortex were reported. It is not easy for surgeons performing cementless THA for the first time to achieve a good result, even though they completed an educational course about it and given that catastrophic complications often occurred during early surgical clinical cases. Therefore, ex-vivo studies are sincerely required to get an expertise by rehearsing the preparation of the femoral envelop in isolated bones. Further studies should be conducted to achieve both highly accurate implant size and correct orientation during the preoperative planning. Additionally, surgeons' learning curve should be examined in future investigations.